First-order N\'eel-VBS transition in $S=3/2$ antiferromagnets

Autor:	Zhang, Fan, Guo, Wenan, Kaul, Ribhu K.
Rok vydání:	2024
Předmět:	Condensed Matter - Strongly Correlated Electrons Condensed Matter - Statistical Mechanics
Zdroj:	Phys. Rev. B 110, 094416 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.110.094416
Popis:	We study the transition between N\'eel and columnar valence-bond solid ordering in two-dimensional $S=3/2$ square lattice quantum antiferromagnets with SO(3) symmetry. According to the deconfined criticality scenario, this transition can be direct and continuous like the well-studied $S=1/2$ case. To study the global phase diagram, we work with four multi-spin couplings with full rotational symmetry, that are free of the sign-problem of quantum Monte Carlo. Exploring the phase diagram with quantum Monte Carlo simulations, we find that the phase transition between N\'eel and valence-bond solid is strongly first-order in the parts of the phase diagram that we have accessed. Comment: 11 pages, 16 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.07334 Zobrazit plný text záznamu View this record from Arxiv